Cydrome Leader wrote:

In sci.electronics.repair Scott Dorsey wrote:

In article , jim beam wrote:

On 03/21/2013 07:23 PM, Nate Nagel wrote:

*why* is it overheating?

because it's linear, retard. if you don't know what they means, ****
off until you find out.

Nothing wrong with linear motor control, it's just inefficient and
produces a lot of heat. I used to work in a place with a 1.2 MW DC
motor whose field coil voltage was controlled by a couple rooms full
of cast-iron resistors. The resistance array lasted nearly 80 years
before the whole facility was taken down.


I've got ask- what was this motor used for?

pumping station? mining equipment steel mill?

Just to blow a lot of HOT AIR around, and it seems to work!

Jamie